Rogerson was heavily involved with notorious members of the Sydney underworld while he was the head of the armed robbery squad during the 1980's. 

A highly decorated officer, he coveted with criminals such as Arthur 'Neddy' Smith (left) and 'Abo' Henry and 'green lighted' the men to commit armed robberies, receiving a 'whack' of the takings later on.

Rogerson, Smith and a band of corrupt Sydney detectives were also involved in the importation and distribution of large quantities of heroin.

Flannery is alleged to have been the gunman in the attempted execution.

Drury had been the undercover agent involved in a police drug operation which resulted in charges being laid against Flannery's friend, Alan Williams.

Williams later testified that Flannery had attempted to bribe Drury through Roger Rogerson in order to get the charges against Williams dismissed.

When Drury rejected repeated attempts at bribery, Williams claims, he agreed to pay Flannery and Rogerson $50,000 each to murder Drury.

On what he thought was his deathbed, Drury told detectives he believed he was shot because of "the Melbourne job."

The shooting led to accusations of widespread corruption and betrayal within the police service.

As Flannery and his wife walked towards their house on January 27, 1985, the house was sprayed with 30 shots from an Armalite rifle.

No one was seriously injured, though Flannery was shot through the hand as he pushed his wife's head down and he suffered some other minor abrasions.

Flannery blamed underworld king-pin, Tom Domican who was later charged and convicted of attempted murder, but the conviction was over-turned on appeal.

Rogerson was seen in the area in the days after the shooting and was interviewed by police.

He claimed he was just curious to see what kind of damage such a gun could do.

He was released without charge.

On May 9, 1985, Flannery received a phone call from crime boss, George Freeman, instructing him attend a meeting.

Flannery went to the garage but found his new car would not start.

He rushed back to the apartment to call Freeman, who told him to catch a taxi.

Flannery then exited the building and was never seen again.

Neddy Smith claims that while waiting for a taxi, two police detectives Flannery was friendly with stopped and offered him a lift.

Allegedly, Flannery got into the backseat and at the next set of traffic lights, another two police officers got into the car on either side of him and before he could react, the officer in the front seat turned around and shot Flannery.

Flannery's body has never been found and no one has been charged with his murder.

New South Wales State Coroner Greg Glass handed down the finding that Flannery was murdered most probably on or about May 9, 1985.

Glass also found that the key to solving his murder lies with Roger Rogerson.

Rogerson told the Sunday program, "Flannery was a complete pest."

Rogerson was found not guilty in 1988 of conspiring with Flannery (left), to murder Mick Drury.

Drury later lodged papers in the NSW Supreme Court, claiming that the service breached its duty of care by failing to promote him.

Mr Drury's medical retirement in March 2000 came after his failure to win promotion to superintendent after 28 years in the force.

These included one of Melbourne's accused gangland murderers, Mick Gatto, alleged WA crime boss John Kizon and notorious former NSW detective Roger Rogerson.

Waters was asked to explain to the royal commission on police corruption about his wide group of friends.

At no stage did the commission suggest or allege he had broken the law, but they were intrigued by his colourful associates.

Waters was known in policing for his wicked sense of humour and Mr Hall was keen to ask if Waters sometimes referred to himself as the Roger Rogerson of Melbourne.

Waters replied: "Oh, I don't think so."

However, he did admit to having left messages for people leaving the name Roger Rogerson - " I think it's quite humorous" - but at first told the persistent Mr Hall he had never dealt with Rogerson.

But after the commission was able to refresh his memory by playing a telephone intercept from January 28, 2002, between Rogerson and Waters, the former Victorian policeman took a new stance.

He'd spoken to him by telephone, yes - but they had never met.

Roger Rogerson told The Age that he could recall only one phone conversation with Waters.

"I have never met the man and now I'm supposed to be linked to him," he said.